Quote #2

You are not wrong, who deemThat my days have been a dream (4-5)

The speaker doesn't say that the woman is right, only that she is not wrong. The speaker seems unwilling to accept the skeptical position that life is all a big dream. There's a wee bit of hesitation there.

Quote #3

All that we see or seemIs but a dream within a dream (10-11)

The speaker sure seems pretty convinced that life is just a dream within a dream. But skepticism is supposed to be about uncertainty, so this doesn't seem so skeptical to us. Can you really be certain about uncertainty?